[1]HAN Lei,ZHENG Jia-li,HE Kang-ning,et al.Effect of Returning Farmland into Forest on Soil Physicochemical Properties in Datong County of Qinghai Province[J].Research of Soil and Water Conservation,2009,16(03):100-104.
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Effect of Returning Farmland into Forest on Soil Physicochemical Properties in Datong County of Qinghai Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 03
Page number:
100-104
Column:
Public date:
2009-06-20
- Title:
- Effect of Returning Farmland into Forest on Soil Physicochemical Properties in Datong County of Qinghai Province
- CLC:
- X171.1;S153
- DOI:
- -
- Abstract:
- In order to know the effect of returning farmland into forest on soil physicochemical properties, the various plant communities of Picea crassifolia with different converting time(5 years below, 5~10 years,10~20 years and 20 years above)together with the contrastive types of natural forest and cultivated farmland have been selected in Datong county of Qinghai. And the soil physicochemical properties in the top, middle and bottom layer of these different communities were comparatively analyzed. The main result shows that returning farmland into forest has a great impact on soil physicochemical properties. Soil bulk density, total porosity, capillary porosity, soil aggregate, large aggregate have shown for the natural woodland > converted farmland > farmland, and as the extension of the time, the performance of returning farmland to forest is getting closer and closer to natural forest land. Meanwhile the content of soil organic matter, total N, rapid available K, CEC have shown the same for the natural woodland > converted farmland > farmland. Compared with farmland, the pH value of soil is a marked improvement, as the extension of the time, the performance of returning farmland to forest is getting closer and closer to natural forest land.
- References:
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1900-01-01